Showerhead control valve



FIG. 1 is a perspective view of a showerhead control valve showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is bottom view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a left side view thereof with a fixed shower nozzle and a hose wherein the phantom lines are for reference only and form no part of the invention. 

The ornamental design for a showerhead control valve, as shown and described. 